24 Hour Urine Cortisol Test

£50.00

Investigating chronic stress, unexplained fatigue, or hormonal imbalances? Get clear answers with a private Urine Cortisol test at Medical Diagnosis Victoria (MDX Victoria) in London.

Think of cortisol as your body’s built-in alarm system. Produced by your adrenal glands, this essential “stress hormone” helps you manage daily stress, regulate your energy, and support your immune system. While cortisol levels in your blood constantly jump up and down throughout the day, a 24-hour urine test acts like a time-lapse camera. It captures a complete picture of your total hormone production over a full day and night. Whether you are checking for adrenal gland disorders or monitoring an existing hormone condition, this comprehensive test provides the precise insights you need.

(Please note: This test requires a full 24-hour urine collection. You must contact our laboratory for specific instructions before booking an appointment.)

Endocrinology & Stress Hormones

Private 24 Hour Urine Cortisol Test in London

Are you investigating symptoms of a hormonal imbalance, chronic stress, or an adrenal disorder? At Medical Diagnosis Victoria (MDX Victoria), we provide a comprehensive 24 hour Urine Cortisol test. By measuring your free cortisol levels over a full day, this test offers a highly accurate picture of your adrenal health and hormone production. Our expert clinical team in central London ensures a smooth and professional experience.

📊 Test Specifications

Clinic Testing Fee

£50.00

🧪

Sample Required24 Hour Urine Collection
📅

Turnaround Time5 Days Processing
⚠️

PreparationCall lab for special instructions
🔬

StatusSpecialist Analysis

EXCELLENT
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Based on 108 reviews
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Daphne Garcin
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All staff I interacted with were particularly helpful and competent in addition to being kind, at both location, Victoria and NW London. Exceptional service. Fast results. Prices remain reasonable. Thank you very much. That makes such a difference when needing tests and results, which can be stressful.
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Flavie xoxo
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I just left the Victoria branch and had to leave a review! I met Kasia and Hari, and they were both absolutely wonderful. I’m extremely scared of blood and needles—they usually make me feel sick or pass out . Hari was so gentle and reassuring while taking my blood sample, and Kasia did an amazing job keeping me distracted and helping me stay calm throughout the whole process. It’s so refreshing to meet staff who are not only professional but also genuinely kind, caring, and committed to providing excellent customer service. They made what is usually a very stressful experience so much easier for me. Thank you both for your kindness and compassion. Because of the way I was treated today, I’ll definitely be recommending the Victoria branch to anyone I know who needs blood tests done!!!!!
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James
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Very professional service. Easy process to get the blood tests I need to monitor my health. Excellent value.
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Iulian Cojocariu
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A very good clinic and highly experienced staff.
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Sabina M
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Always friendly and helpful staff
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Brian Burgess
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Excellent Service
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AKA Ska
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Excellent customer service, speedy service and knowledgeable staff. Results are sent to your email - can't recommend enough!
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Francesca Vavassori
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I want to thank the Medical Diagnosis Victoria Private Clinic for their competence, professional job, absolute kindness, and for the fast and efficient service. I go there every month to do a blood test; I receive a prompt service and the results the same day. I have nevertheless found in my life a clinic that is so competent and which takes a warm care of their patients. I truly suggest to go to this clinic. Kind regards, Francesca
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sotiria kyriakidou
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Very satisfied, fair prices and the test results on time! The nice surprise was the fantastic staff, pleasant, with a big smile and tons of positive energy! Thank you!
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Yvonne M
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Excellent service from Medical Diagnosis Victoria. The staff were professional, friendly, and made the whole Blood drawn process quick and stress-free. Results were delivered promptly with a clear and detailed report. Highly recommended!

Diagnostic Focus

What is a Urine Cortisol Test?

The urine cortisol test measures the concentration of free cortisol excreted in your urine over a full 24 hour period. Cortisol is the main glucocorticoid hormone produced by your adrenal cortex and plays a central role in stress regulation, glucose metabolism, and immune modulation. Unlike serum cortisol in the blood, which fluctuates significantly throughout the day, urinary free cortisol reflects your overall hormone production over a complete circadian cycle.

Adrenal Function

Evaluating urinary cortisol is essential for:

  • Investigating adrenal hyperfunction
  • Detecting adrenal hypofunction
  • Diagnosing cortisol excess
  • Monitoring adrenal gland health

Metabolism & Stress

This test helps monitor your body by:

  • Assessing physiological stress responses
  • Evaluating glucose metabolism impacts
  • Monitoring immune modulation
  • Checking overall endocrine balance

Systemic Monitoring

The laboratory provides critical data to:

  • Support Cushing syndrome investigations
  • Complement serum or salivary tests
  • Monitor cortisol regulation disorders
  • Track hormone treatment progress

Clinical Uses

Why is Cortisol Testing Important?

Because cortisol is excreted unbound in the urine, measuring it this way completely avoids the influence of cortisol binding proteins found in the blood. This makes the 24 hour urine collection one of the most reliable methods for evaluating disorders related to cortisol excess or deficiency in endocrinology.

Evaluating Physical Symptoms

You should consider this test if you are actively experiencing physical shifts, such as:

  • Unexplained, rapid weight gain, particularly around the midsection and upper back.
  • Severe chronic fatigue, muscle weakness, or a sudden darkening of the skin.
  • High blood pressure combined with elevated blood sugar levels.

Ongoing Medical Monitoring

Doctors frequently recommend urine cortisol testing to manage ongoing treatments and investigations, including:

  • Screening for Cushing syndrome (cortisol excess).
  • Complementary testing alongside serum (blood) or salivary cortisol measurements.
  • Monitoring existing disorders of cortisol regulation.

Important 24 Hour Collection Notice

Please call the laboratory for specimen collection instructions before booking an appointment. This specific test requires a full 24 hour urine collection, and you will need to pick up a special container and follow specific guidelines to ensure an accurate reading.

Understanding Adrenal Health

A comprehensive 24 hour urine cortisol test provides essential clarity on your adrenal function. For further information on adrenal conditions such as Cushing syndrome in the UK, you can view the official NHS guide on Cushing syndrome.

Clinic Excellence

Why Choose Medical Diagnosis Victoria (MDX Victoria)?

Specialist Laboratory Analysis

Your 24 hour urine sample is securely transferred to a specialist laboratory equipped to accurately measure precise hormone excretion levels, ensuring you receive highly reliable data.

Reliable 5 Day Turnaround

Specialist endocrinology testing requires meticulous analysis. We ensure your sample is processed efficiently, with comprehensive results available within 5 days.

Expert Central London Care

Conveniently located in Victoria, our clinic offers a welcoming and professional environment where you can coordinate your sample container pickup and drop off with total peace of mind.

Clear Pricing

£50.00 test fee with absolutely no hidden costs. Because this is a urine collection test, there is no phlebotomy fee required.

Pathology Reports

How To Read Your Laboratory Results

Your results will detail the total amount of free cortisol excreted in your urine over the 24 hour collection period. Extremely high levels often indicate an adrenal hyperfunction disorder like Cushing syndrome, while very low levels may point toward adrenal hypofunction, such as Addison’s disease. The report should always be assessed in conjunction with your medical history and clinical examination.

Results Timeline: Your comprehensive hormone report is typically available within 5 days of submitting your properly collected 24 hour sample.

Diagnostics in London at Medical Diagnosis Victoria

Medical Diagnosis Victoria Clinic Reception Area

Medical Consultation

Need Help? Private GP Consultations

If you have questions about your adrenal health, are experiencing extreme fatigue or unexplained weight gain, or need help interpreting abnormal cortisol results, we offer private GP consultations on site. Our clinical team can review your report and recommend the best next steps.

Book a Private GP Now

Clinic Support

Frequently Asked Questions

Do I need to give a blood sample for this test?
No, this specific test measures free cortisol through a 24 hour urine collection. It is entirely non invasive, though your doctor may order separate blood tests for comparison.
Why do I need to collect my urine for 24 hours?
Cortisol levels rise and fall drastically throughout the day and night based on your circadian rhythm. Collecting urine over a full 24 hour period gives the most accurate average of your daily hormone production.
Why must I call the lab before booking?
A 24 hour urine test requires a special large container and specific instructions on how to properly store the sample during the collection period. Calling ahead ensures you have the correct equipment.
Is there a phlebotomy fee?
A phlebotomy fee only applies to blood draws. Because this is a urine collection, you only pay the £50.00 testing fee.
What should I do if my cortisol levels are abnormal?
If your result indicates high or low cortisol, we highly recommend booking a GP consultation. Your doctor can help determine the root cause of the adrenal imbalance and create a treatment plan.
Online Trends

Most Searched Online Questions About Cortisol

What is Cushing syndrome?
Cushing syndrome is a rare condition caused by having too much cortisol in your body for a long period of time. Symptoms include weight gain around the chest and stomach, a puffy face, and easily bruised skin.
Can severe stress cause high cortisol?
Yes. Cortisol is the body’s primary stress hormone. Chronic physical or emotional stress can lead to sustained high levels of cortisol, which may impact your immune system and metabolism.
What are the symptoms of low cortisol?
Low cortisol, often seen in conditions like Addison’s disease, can cause chronic fatigue, muscle weakness, loss of appetite, weight loss, and low blood pressure.

Book Your Private Urine Test in London Today

Take Control of Your Adrenal Health

Stop guessing about your hormonal symptoms. Secure your 24 Hour Urine Cortisol test at Medical Diagnosis Victoria (MDX Victoria) today. Remember to contact our laboratory for your special collection container, and let our expert team support your health journey with clear, accurate diagnostic answers.

Please note: The clinical indications listed are for general informational purposes only and do not represent a complete list of possible uses, which may vary depending on individual circumstances.

Results should always be assessed in conjunction with the patient’s medical history, clinical examination, and other findings by a qualified healthcare professional.

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